Keep (one's) head below the parapet spoken language verb phrase
"Put one's head above the parapet" is the phrase's antonym.
Used to indicate avoiding trouble or danger.
I think that keeping my head below the parapet is the best thing to do at that time.
I am wavering between taking that risk and keeping my head below the parapet.
When my parents have a fight. I don't know what to do but keep my head below the parapet.
Don't keep your head below the parapet all the time. sometimes, you should try to raise your voice.
It's mostly used in the present tense.